Home / 1,570.32-2,360.88-1,205.28

Finding the Fourth Proportional to 1,570.32, 2,360.88 and 1,205.28

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Solution

The fourth proportional to 1,570.32, 2,360.88 and 1,205.28 is: 1,812.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570.32 : 2,360.88 = 1,205.28 : x
  2. Step 2: Convert to fraction form
    1,570.32/2,360.88 = 1,205.28/x
  3. Step 3: Cross multiply
    1,570.32x = 2,360.88 × 1,205.28
  4. Step 4: Simplify right side
    1,570.32x = 2,845,521.45
  5. Step 5: Solve for x
    x = 2,845,521.45/1,570.32
  6. Step 6: Final answer
    x = 1,812.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.